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10th Class Science Electricity and Circuits

  • question_answer 8)
    When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Find the value of the resistance of the resistor.  

    Answer:

    Here, V = 12 V, I = 2.5 mA = 2.5 × 10-3 A Resistance of the resistor, R =  =  = 4800  = 4.8  


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